<template>
  <div :class="className" :style="{ height: height, width: width }" />
</template>

<script>
import echarts from 'echarts'

require('echarts/theme/macarons') // echarts theme
import { debounce } from '@/utils'

export default {
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '300px'
    }
  },
  data() {
    return {
      chart: null
    }
  },
  mounted() {
    this.initChart()
    this.__resizeHandler = debounce(() => {
      if (this.chart) {
        this.chart.resize()
      }
    }, 100)
    window.addEventListener('resize', this.__resizeHandler)
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    window.removeEventListener('resize', this.__resizeHandler)
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')

      this.chart.setOption({
        tooltip: {
          position: 'top'
        },
        animation: false,
        grid: {
          height: '50%',
          y: '10%'
        },
        xAxis: {
          type: 'category',
          data: [
            '12a',
            '1a',
            '2a',
            '3a',
            '4a',
            '5a',
            '6a',
            '7a',
            '8a',
            '9a',
            '10a',
            '11a',
            '12p',
            '1p',
            '2p',
            '3p',
            '4p',
            '5p',
            '6p',
            '7p',
            '8p',
            '9p',
            '10p',
            '11p'
          ],
          splitArea: {
            show: true
          }
        },
        yAxis: {
          type: 'category',
          data: [
            'Saturday',
            'Friday',
            'Thursday',
            'Wednesday',
            'Tuesday',
            'Monday',
            'Sunday'
          ],
          splitArea: {
            show: true
          }
        },
        visualMap: {
          min: 0,
          max: 10,
          calculable: true,
          orient: 'horizontal',
          left: 'center',
          bottom: '15%'
        },
        series: [
          {
            name: 'Punch Card',
            type: 'heatmap',
            data: [
              [0, 0, 5],
              [0, 1, 1],
              [0, 2, 0],
              [0, 3, 0],
              [0, 4, 0],
              [0, 5, 0],
              [0, 6, 0],
              [0, 7, 0],
              [0, 8, 0],
              [0, 9, 0],
              [0, 10, 0],
              [0, 11, 2],
              [0, 12, 4],
              [0, 13, 1],
              [0, 14, 1],
              [0, 15, 3],
              [0, 16, 4],
              [0, 17, 6],
              [0, 18, 4],
              [0, 19, 4],
              [0, 20, 3],
              [0, 21, 3],
              [0, 22, 2],
              [0, 23, 5],
              [1, 0, 7],
              [1, 1, 0],
              [1, 2, 0],
              [1, 3, 0],
              [1, 4, 0],
              [1, 5, 0],
              [1, 6, 0],
              [1, 7, 0],
              [1, 8, 0],
              [1, 9, 0],
              [1, 10, 5],
              [1, 11, 2],
              [1, 12, 2],
              [1, 13, 6],
              [1, 14, 9],
              [1, 15, 11],
              [1, 16, 6],
              [1, 17, 7],
              [1, 18, 8],
              [1, 19, 12],
              [1, 20, 5],
              [1, 21, 5],
              [1, 22, 7],
              [1, 23, 2],
              [2, 0, 1],
              [2, 1, 1],
              [2, 2, 0],
              [2, 3, 0],
              [2, 4, 0],
              [2, 5, 0],
              [2, 6, 0],
              [2, 7, 0],
              [2, 8, 0],
              [2, 9, 0],
              [2, 10, 3],
              [2, 11, 2],
              [2, 12, 1],
              [2, 13, 9],
              [2, 14, 8],
              [2, 15, 10],
              [2, 16, 6],
              [2, 17, 5],
              [2, 18, 5],
              [2, 19, 5],
              [2, 20, 7],
              [2, 21, 4],
              [2, 22, 2],
              [2, 23, 4],
              [3, 0, 7],
              [3, 1, 3],
              [3, 2, 0],
              [3, 3, 0],
              [3, 4, 0],
              [3, 5, 0],
              [3, 6, 0],
              [3, 7, 0],
              [3, 8, 1],
              [3, 9, 0],
              [3, 10, 5],
              [3, 11, 4],
              [3, 12, 7],
              [3, 13, 14],
              [3, 14, 13],
              [3, 15, 12],
              [3, 16, 9],
              [3, 17, 5],
              [3, 18, 5],
              [3, 19, 10],
              [3, 20, 6],
              [3, 21, 4],
              [3, 22, 4],
              [3, 23, 1],
              [4, 0, 1],
              [4, 1, 3],
              [4, 2, 0],
              [4, 3, 0],
              [4, 4, 0],
              [4, 5, 1],
              [4, 6, 0],
              [4, 7, 0],
              [4, 8, 0],
              [4, 9, 2],
              [4, 10, 4],
              [4, 11, 4],
              [4, 12, 2],
              [4, 13, 4],
              [4, 14, 4],
              [4, 15, 14],
              [4, 16, 12],
              [4, 17, 1],
              [4, 18, 8],
              [4, 19, 5],
              [4, 20, 3],
              [4, 21, 7],
              [4, 22, 3],
              [4, 23, 0],
              [5, 0, 2],
              [5, 1, 1],
              [5, 2, 0],
              [5, 3, 3],
              [5, 4, 0],
              [5, 5, 0],
              [5, 6, 0],
              [5, 7, 0],
              [5, 8, 2],
              [5, 9, 0],
              [5, 10, 4],
              [5, 11, 1],
              [5, 12, 5],
              [5, 13, 10],
              [5, 14, 5],
              [5, 15, 7],
              [5, 16, 11],
              [5, 17, 6],
              [5, 18, 0],
              [5, 19, 5],
              [5, 20, 3],
              [5, 21, 4],
              [5, 22, 2],
              [5, 23, 0],
              [6, 0, 1],
              [6, 1, 0],
              [6, 2, 0],
              [6, 3, 0],
              [6, 4, 0],
              [6, 5, 0],
              [6, 6, 0],
              [6, 7, 0],
              [6, 8, 0],
              [6, 9, 0],
              [6, 10, 1],
              [6, 11, 0],
              [6, 12, 2],
              [6, 13, 1],
              [6, 14, 3],
              [6, 15, 4],
              [6, 16, 0],
              [6, 17, 0],
              [6, 18, 0],
              [6, 19, 0],
              [6, 20, 1],
              [6, 21, 2],
              [6, 22, 2],
              [6, 23, 6]
            ].map(function(item) {
              return [item[1], item[0], item[2] || '-']
            }),
            label: {
              normal: {
                show: true
              }
            },
            itemStyle: {
              emphasis: {
                shadowBlur: 10,
                shadowColor: 'rgba(0, 0, 0, 0.5)'
              }
            }
          }
        ]
      })
    }
  }
}
</script>
